/**
 * Sync client for x402-cfo hosted dashboard.
 *
 * Pushes ledger entries and budget status to the hosted service
 * for centralized monitoring, alerts, and compliance reporting.
 *
 * Free users never configure this — everything works locally.
 * Paid users add one line: sync: { apiKey: 'xxx' }
 */
import type { LedgerEntry } from './ledger.js';
import type { BudgetStatus } from './budget.js';
import type { SpendSummary } from './analytics.js';
export interface SyncConfig {
    /** API key from dashboard.x402cfo.com */
    apiKey: string;
    /** Agent identifier (for multi-agent setups) */
    agentId?: string;
    /** Dashboard API URL override. Default: https://api.x402cfo.com */
    apiUrl?: string;
    /** Sync interval in ms. Default: 30000 (30s) */
    intervalMs?: number;
    /** Disable sync (useful for testing). Default: false */
    disabled?: boolean;
}
export declare class DashboardSync {
    private config;
    private buffer;
    private timer;
    private getBudget;
    private getSummary;
    constructor(config: SyncConfig, getBudget: () => BudgetStatus, getSummary: () => SpendSummary);
    /** Buffer a ledger entry for the next sync. */
    push(entry: LedgerEntry): void;
    /** Start periodic sync. */
    private start;
    /** Stop periodic sync. */
    stop(): void;
    /** Flush buffered entries to the dashboard. */
    flush(): Promise<void>;
}
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